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Finding the Fourth Proportional to 298,666.80, 448,000.20 and 180,471.60

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Solution

The fourth proportional to 298,666.80, 448,000.20 and 180,471.60 is: 270,707.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,666.80 : 448,000.20 = 180,471.60 : x
  2. Step 2: Convert to fraction form
    298,666.80/448,000.20 = 180,471.60/x
  3. Step 3: Cross multiply
    298,666.80x = 448,000.20 × 180,471.60
  4. Step 4: Simplify right side
    298,666.80x = 80,851,312,894.32
  5. Step 5: Solve for x
    x = 80,851,312,894.32/298,666.80
  6. Step 6: Final answer
    x = 270,707.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.